JP7494142B2 - Radio management system and radio management method - Google Patents

Description

The present invention relates to a wireless management system.

The terminals used in conventional public communications are devices such as smartphones carried by users, which move around with the user and perform various communications using a single terminal.

However, in recent years, private communications using public communications technologies such as Local 5G and Private LTE have begun to spread. These communication methods have the advantage of being able to guarantee communication quality and achieve high security compared to wireless communication methods such as wireless LAN that have been used in the past. One example of a usage method that takes advantage of this advantage is the wireless transmission of control signals for equipment at production sites such as factories and data acquired by sensors. In this type of usage, terminals are installed in fixed locations, and each terminal transmits and receives a limited type of data.

The usage status of radio resources is an important indicator for the operation and management of wireless systems. The amount of radio resources corresponds to the amount of data that the wireless system can communicate simultaneously. Therefore, if there are a large number of terminals communicating simultaneously, or if each terminal communicates large amounts of data, the radio resources allocated to each terminal will become congested, causing communication failures.

In conventional public communications, communication carriers monitor the usage of wireless resources at each base station, and take measures such as adding more base stations in areas where there is a chronic shortage of resources. One method for understanding the usage of wireless resources is to obtain the system parameters of the base station.

The following prior art is included as background art in this technical field. Patent Document 1 (JP 2015-126407 A) describes a wireless network evaluation device that includes a signal-to-interference-plus-noise ratio estimation unit that estimates a signal-to-interference-plus-noise ratio at a location using wireless quality that does not depend on the wireless load at the location and the wireless load of a cell that covers the location, a number of simultaneous connections estimation unit that estimates the number of simultaneous connections corresponding to the wireless load, and a communication speed estimation unit that estimates a communication speed at the location using a throughput corresponding to the estimated signal-to-interference-plus-noise ratio and the estimated number of simultaneous connections, and the communication speed estimation unit outputs an estimated communication speed corresponding to at least one time characteristic of the wireless load, the signal-to-interference-plus-noise ratio, and the number of simultaneous connections in a time series (see claim 1). The method described in Patent Document 1 is a method that can be used only on the communication carrier side where information from a base station is available, and does not use information on the location of a user terminal or the type of communication that is not available on the carrier side.

JP 2015-126407 A

Privately operated communication networks such as Local 5G and Private LTE use 5G or LTE systems equivalent to public networks. Public networks are operated by communication carriers with advanced technical capabilities and extensive experience in network operation control, ensuring stable network operation. On the other hand, privately operated networks are basically operated by users themselves or by external companies on a contract basis. In this case, there is a risk that stable network operation and troubleshooting will be insufficient because users have less knowledge and technology in network operation compared to communication carriers.

On the other hand, these private networks have characteristics that differ from public networks, such as the location of terminals being fixed, and the amount of communication data generated and the timing of communication being fixed, as in the factory example mentioned above.

However, no operation management system has been developed that utilizes these characteristics to realize network operations that are intuitively understandable to users. Specifically, there is no wireless management system that can indicate the amount of available wireless resources in the current system by understanding the wireless resource status using information available on the user side.

In addition, it is not possible to present to the administrator possible locations for installing a terminal based on the throughput and communication schedule required by the terminal.

In addition, it is not possible to present to the administrator the estimated throughput of a given terminal based on the terminal's location and communication schedule.

A representative example of the invention disclosed in this application is as follows.
A wireless management system that manages a wireless system consisting of base stations and terminals, the system being composed of a computer having an arithmetic unit that executes predetermined arithmetic processing and a memory device connected to the arithmetic unit, the arithmetic unit calculates the number of terminals communicating with the base station at the time of communication between the terminal and the base station based on the number of devices, among the terminals connected to the base station, that are operational at a future time and that may communicate through the terminal, and the arithmetic unit calculates the usage rate of the wireless resources used by the terminal based on the location information of the terminal and the calculated number of terminals.

According to one aspect of the present invention, it is possible to indicate the availability of radio resources. Problems, configurations, and advantages other than those described above will become clear from the description of the following embodiment.

FIG. 1 is a diagram showing a configuration of a wireless management system according to an embodiment of the present invention. FIG. 2 is a functional block diagram of a server according to the present embodiment. FIG. 2 is a functional block diagram of a base station according to the present embodiment. FIG. 2 is a functional block diagram of a terminal according to the present embodiment. 1 is a flowchart of an estimation process according to a first embodiment. 11 is a detailed flowchart of an allocation procedure according to the first embodiment. 11 is a detailed flowchart of a reallocation procedure according to the first embodiment. FIG. 13 is a diagram illustrating an example of a screen in which the wireless resource utilization rate is displayed on the administrator terminal in the first embodiment. FIG. 13 is a diagram illustrating an example of a screen in which the wireless resource utilization rate is displayed on the administrator terminal in the first embodiment. 13 is a flowchart of a process for extracting possible locations for installing a wireless terminal according to the second embodiment. FIG. 11 is a diagram illustrating an example of a screen that displays possible locations for installing a terminal on an administrator terminal according to a second embodiment. 13 is a flowchart of a process for calculating a throughput according to a third embodiment. FIG. 13 is a diagram illustrating an example of a screen that displays throughput information on an administrator terminal according to a third embodiment.

Example 1
FIG. 1 is a diagram showing the configuration of a wireless management system according to an embodiment of the present invention.

The wireless management system of this embodiment is composed of a terminal 3 that connects to devices such as sensors and surveillance cameras and transmits data wirelessly from them, a base station 2 that communicates wirelessly with multiple terminals 3, a server 1 that receives information from the terminals 3 and information from the administrator and manages the wireless resource usage status of the system, and an administrator terminal 4 that the network administrator uses to input and output information. The network administrator operates the administrator terminal 4 to register information necessary for the operation and management of the system in the server 1. The server 1 provides the information necessary for network management to the system administrator via the administrator terminal 4.

Figure 2 is a functional block diagram of server 1.

The server 1 includes a terminal information collecting unit 11, an administrator terminal communication unit 12, a terminal information database 13, a communication environment database 14, a wireless resource calculation unit 15, and a network control unit 16. The terminal information collecting unit 11 communicates with the terminal 3 through the base station 2 to collect information on the terminal 3. The administrator terminal communication unit 12 receives necessary information such as terminal position information from the administrator through the administrator terminal 4, and provides information necessary for network management to the administrator through the administrator terminal 4. The terminal information database 13 stores the acquired information on the terminal 3 (e.g., the position of the terminal 3, throughput, etc.). The communication environment database 14 stores the signal strength distribution in the communication area and the correspondence information between the throughput and the signal strength. The wireless resource calculation unit 15 calculates the usage status of the wireless resource using the acquired information. The network control unit 16 controls the network using the calculated wireless resource usage status . For example, the network control unit 16 may allocate a large amount of wireless resources to a preset priority terminal, or limit the allocation of wireless resources to a terminal 3 with low throughput.

Figure 3 is a functional block diagram of base station 2.

The base station 2 has a wireless communication unit 21, a communication control unit 22, and a server communication unit 23, and sends information necessary for wireless resource management transmitted from the terminal 3 to the server 1, and controls the timing of wireless communication with the terminal 3 according to instructions from the server 1. The wireless communication unit 21 communicates wirelessly with the terminal 3. The communication control unit 22 controls wireless communication with the terminal 3. The server communication unit 23 communicates with the server 1.

Figure 4 is a functional block diagram of terminal 3.

The terminal 3 has a wireless communication unit 31, a communication environment measurement unit 32, and a communication control unit 33. The terminal 3 connects to user equipment such as a sensor or a robot, and wirelessly transmits and receives information input and output to the user equipment. The terminal 3 also measures the received signal strength and throughput of signals from the base station 2 according to instructions from the server 1 or autonomously, and transmits the measurement results to the server 1 via the base station 2. The terminal 3 also controls the timing of transmission and reception of information from the user equipment according to instructions from the server 1. The wireless communication unit 31 communicates wirelessly with the base station 2. The communication environment measurement unit 32 measures the received signal strength and throughput of signals from the base station 2. The communication control unit 33 controls the timing of wireless communication according to instructions from the server 1.

Figure 5 is a flowchart of the estimation process for estimating the wireless resource usage rate of terminal 3 in a wireless management system.

The wireless resource usage rate estimation is performed by the wireless resource calculation unit 15 of the server 1. Since wireless resources are allocated to the terminals 3 connected to each base station 2, when calculating the wireless resource usage rate, the time at which the usage rate is to be calculated and the base station 2 for which the usage rate is to be calculated are first determined (41).

Next, the number of terminals 3 communicating with the base station 2 at that time is calculated (42). For example, the number of terminals 3 communicating is calculated by referring to the communication schedule of the terminals 3. The communication schedule is the communication time, communication interval, communication period, etc. of each terminal 3 input by the administrator, and the timing of communication of the terminals 3 is managed by these pieces of information. In addition, the wireless management system may record the communication time and communication volume of the terminals 3 in the past, and estimate the terminals 3 that are likely to communicate at a certain time in the future based on the past information, and use the estimated number of terminals 3 that are likely to communicate as the number of simultaneous communication terminals. Furthermore, the management system may identify devices connected to the terminals 3, such as machine tools, sensors, and cameras, that are operating at a certain time in the future, and use the total number of devices that can generate regular communication from the identified devices as the number of simultaneous communication terminals.

Next, the wireless management system calculates the wireless resource allocation rate for terminal 3 (43). The wireless resource allocation rate is the ratio of the wireless resources allocated to each terminal 3 when the total wireless resources of the base station 2 are set to 1. For example, if the base station 2 allocates 30% of its allocated wireless resources to one terminal, the wireless resource allocation rate for that terminal will be 0.3. In addition, if the number of simultaneous communication devices is n, and wireless resources are allocated evenly to the connected terminals 3, the wireless resource allocation rate for each terminal 3 will be 1/n.

Next, wireless resources are allocated to terminal 3 according to the wireless resource allocation rate calculated in step 43 (44). Details of the allocation procedure will be described with reference to FIG. 6. After the wireless resources are allocated, terminal 3 that cannot satisfy the requested throughput with the allocated wireless resources is registered as a terminal waiting for reallocation. Furthermore, terminal 3 that can satisfy the requested throughput within the allocated wireless resources returns the surplus wireless resources. The wireless management system tallies the returned wireless resources as surplus wireless resources.

When the wireless resource allocation is completed, the number of terminals 3 registered as waiting for reallocation is confirmed (45). If there are no terminals 3 waiting for reallocation, the estimation of wireless resource usage for all terminals 3 is completed, and the wireless resources that were not allocated are recorded as surplus wireless resources. If there is one or more terminals 3 waiting for reallocation, it is determined whether there are surplus wireless resources available for reallocation (46). If there are no surplus wireless resources and the allocation of all wireless resources has been completed, the wireless resource usage estimation process is terminated. If there are surplus wireless resources available for reallocation, the surplus wireless resources are reallocated to the terminals 3 waiting for reallocation (47). Details of the procedure for reallocating surplus wireless resources will be described with reference to FIG. 7.

Figure 6 is a detailed flowchart of the allocation procedure (44).

First, the wireless resource calculation unit 15 acquires the location information of the terminal 3 from the terminal information database 13 (51). The terminal location information may be acquired by the administrator operating the administrator terminal 4 to input the location information of the terminal 3, or the location information measured by the terminal 3 using a wireless positioning device such as GPS may be acquired through the terminal information collection unit 11. The received signal strength of the terminal 3 is estimated using the location information acquired in step 51 and the signal strength distribution within the communication area (52).

Next, the maximum throughput Tm of the terminal 3 that can be obtained with the received signal strength estimated in step 52 is derived (53) from the correspondence information between throughput and signal strength in the communication environment database 14. Furthermore, the wireless resource allocation rate currently allocated by the wireless management system is acquired (54). For example, assuming that the wireless resource allocation rate to the terminal 3 is R1, an estimated throughput t1 is calculated as the throughput that the terminal 3 is estimated to obtain next (55). The estimated throughput can be calculated using the following formula.
t1 = R1 × Tm

Next, the required throughput TR of the terminal 3 is obtained from the terminal information database 13 (56). The estimated throughput t1 calculated in step 55 is compared with the required throughput TR to determine whether the request of the terminal 3 is satisfied (57). If TR≦t1, and the request of the terminal 3 is satisfied, the unused radio resources are returned as surplus radio resources (58). The surplus radio resources RO can be calculated by the following formula:
RO = (t1 - TR) / Tm

On the other hand, if TR>t1 and the request of terminal 3 is not satisfied, the terminal 3 is registered as a terminal waiting for resource reallocation (59).

Figure 7 is a detailed flowchart of the procedure for reallocating surplus radio resources (47).

First, the radio resource calculation unit 15 counts the surplus radio resources returned after the radio resources are allocated to all the target terminals 3, and counts the surplus radio resources RS that can be reallocated (61). Next, the number nR of terminals registered as waiting for reallocation is counted (62). Based on the counted surplus radio resources RS and the number nR of terminals waiting for reallocation, the radio resource reallocation amount RR to be reallocated to the terminals 3 is calculated (63). RR can be calculated by the following formula:
RR = RS / nR

The terminal 3 waiting for reallocation receives the wireless resources of the wireless resource reallocation amount and adds it to the wireless resource allocation amount already allocated to calculate a new wireless resource allocation amount and the corresponding estimated throughput (65). Then, the estimated throughput calculated in step 65 is compared with the required throughput to determine whether the request of the terminal 3 has been met (66). If the request of the terminal 3 has been met, the terminal 3 is removed from the terminals waiting for resource reallocation, and the allocation rate of the unused wireless resources is returned as surplus wireless resources (67). If the request of the terminal 3 is not met even after the reallocation, the registration of the terminal 3 as a terminal waiting for resource reallocation continues.

By estimating the wireless resource utilization rate described above, the wireless resource utilization rate and surplus wireless resource rate of terminal 3 at a desired time can be calculated.

Figures 8 and 9 show examples of screens that display the wireless resource utilization rate calculated using the method described above on the administrator terminal 4.

The utilization status of terminals 3 and the status of surplus wireless resources in the target base station 2 are visualized, illustrating the overall situation and displaying the throughput and resource usage rate of each terminal. This allows the administrator to know the resource margin of the entire system and determine whether it is possible to add terminals 3 or change transmission information. It also allows the administrator to know which terminals are using the most resources and the throughput being achieved by each terminal. In addition, by showing the change in wireless resource utilization rate over time as in Figure 9, the administrator can be shown the tightness of wireless resources at a specific time.

Example 2
In the second embodiment, a method is described in which a wireless resource calculation function of the wireless management system of the present invention is used to input a required throughput, thereby providing information on the installation location of a terminal 3 where this throughput can be obtained. Note that in the second embodiment, the configuration and processing different from the first embodiment are mainly described, and the description of the same configuration and processing as the first embodiment is omitted.

Figure 10 is a flowchart of the process for extracting locations where two wireless terminals can be installed.

The extraction of possible locations for installing wireless terminals is executed by the wireless resource calculation unit 15 of the server 1. First, the wireless resource calculation unit 15 determines the area in which the terminal 3 will be installed, and determines the target base station 2 (81). Next, information is acquired about the throughput required by the terminal 3 and the period during which communication will be performed at that throughput (82). The information about the throughput and communication period is input by the administrator operating the administrator terminal 4.

The wireless resource calculation unit 15 uses these pieces of information to calculate the maximum number of devices that will communicate simultaneously during the specified period (83). For example, the maximum number of devices that will communicate simultaneously is calculated by referring to the communication schedule of the terminal 3. The communication schedule is the communication time, communication interval, communication period, etc. of each terminal 3 input by the administrator, and the timing at which the terminal 3 communicates is managed by these pieces of information. In addition, the wireless management system may record the communication time and communication volume of the terminal 3 in the past, and estimate the terminal 3 that is likely to communicate at a certain time in the future based on the past information, and use the estimated number of terminals 3 that are likely to communicate as the number of terminals that will communicate simultaneously. Furthermore, the management system may identify devices connected to the terminal 3, such as machine tools, sensors, and cameras that are operating at a certain time in the future, and use the total number of devices that can generate regular communication from the identified devices as the number of terminals that will communicate simultaneously.

Next, the required maximum throughput is calculated (84) using the throughput information acquired in step 82 and the maximum number of devices communicating simultaneously calculated in step 83. When the maximum number of devices communicating simultaneously during the communication period is n (devices) and the required throughput is t (Mbps), the maximum throughput T (Mbps) required to prevent communication failure at the terminal can be calculated using the following formula.
T = n × t

Next, the required signal reception strength to obtain this maximum throughput is calculated from the correspondence information between throughput and signal strength in the communication environment database 14 (85).

Next, information indicating the signal strength distribution within the communication area is obtained from the communication environment database 14 (86). For example, the received signal strength can be measured at multiple locations within the area using a measuring device, and the received signal strength at locations not measured can be estimated from the measured values. Alternatively, a signal propagation simulation using a three-dimensional model can be performed to calculate the distribution of the received signal strength.

Based on the acquired signal strength distribution, a range in which the received signal strength is equal to or greater than the required signal reception strength calculated in step 85 is extracted (87). The extracted range is then provided to the administrator via the administrator terminal 4.

The processing of steps 86 and 87 may be executed by the wireless resource calculation unit 15 of the server 1, or the necessary information may be sent to the administrator terminal 4 and the processing may be executed by the administrator terminal 4.

Figure 11 shows an example of a screen that displays possible locations for installing terminals on the administrator terminal 4.

In the method of the second embodiment, possible locations for installing terminals based on the required throughput are output. The administrator inputs information on the planned installation area, the required throughput, and the planned communication period, and the received signal strength required to satisfy the input requirements and information on possible locations for installing terminals are displayed.

Example 3
In the third embodiment, a method will be described in which the wireless resource calculation function of the wireless management system of the present invention is used to provide information on the throughput guaranteed to the terminal 3 by inputting the installation location and communication schedule of the terminal 3. Note that in the third embodiment, the configuration and processing different from those of the first and second embodiments will be mainly described, and the description of the configuration and processing that are the same as those of the first and second embodiments will be omitted.

Figure 12 is a flowchart of the process for calculating throughput based on the installation location of terminal 3 and the communication schedule.

First, the administrator uses the administrator terminal 4 to determine the area in which the terminals 3 will be installed (or the base station 2 that will communicate with the terminals 3) (101), and inputs the planned installation locations of the terminals 3 (102). At this time, the administrator also inputs the communication schedule for each terminal 3.

The wireless resource calculation unit 15 receives the planned installation locations and communication schedules of the terminals 3 and calculates the maximum number of terminals 3 that communicate simultaneously during the communication period of each terminal 3 (103). For example, the maximum number of terminals 3 that communicate simultaneously is calculated by referring to the communication schedules of the terminals 3. The communication schedules are the communication times, communication intervals, communication periods, etc. of each terminal 3 input by the administrator, and the timing at which the terminals 3 communicate is managed by these pieces of information. In addition, the wireless management system may record the communication times and communication volumes of the terminals 3 in the past, and based on the past information, estimate the terminals 3 that are likely to communicate at a certain time in the future, and use the estimated number of terminals 3 that are likely to communicate as the number of terminals that communicate simultaneously. Furthermore, the management system may identify devices connected to terminals 3, such as machine tools, sensors, and cameras that are operating at a certain time in the future, and use the total number of devices that can generate regular communication from the identified devices as the number of terminals that communicate simultaneously.

Then, the wireless resource calculation unit 15 acquires information indicating the signal strength distribution within the communication area from the communication environment database 14 (104). Based on the acquired signal strength distribution, the wireless resource calculation unit 15 calculates the received signal strength that the terminal 3 can obtain at the input location. Then, the wireless resource calculation unit 15 calculates the maximum throughput that each terminal 3 can obtain from the calculated received signal strength and the correspondence information between throughput and signal strength in the communication environment database 14 (105).

The wireless resource calculation unit 15 calculates an estimated throughput of the terminal 3 from the calculated maximum throughput and the maximum number of terminals communicating simultaneously during the communication period of the terminal 3 (106). When the maximum throughput is T and the maximum number of terminals communicating simultaneously is n, the estimated throughput t can be calculated by the following formula.
t = T / n

Figure 13 shows an example of a screen that displays throughput information on the administrator terminal 4.

In the method of the third embodiment, by inputting information on the planned installation location of the terminal 3 and the communication schedule, information on the estimated throughput of the terminal 3 is provided. The administrator specifies the planned installation location of the terminal 3 on a map and inputs the communication period of each terminal 3, and displays information on the estimated throughput and the estimated received signal strength when the allocation of wireless resources to each terminal 3 is the smallest and the throughput is smallest.

As described above, the wireless management system of this embodiment calculates the usage rate of wireless resources used by terminal 3 based on the location information of terminal 3 and the number of terminals 3 communicating with base station 2 when terminal 3 communicates with base station 2, so that it can accurately simulate actual resource allocation using a small amount of information that is easy to collect, and can accurately present the available wireless resources.

In addition, the wireless management system of this embodiment calculates the number of terminals 3 communicating with a base station 2 when a terminal 3 communicates with the base station 2 based on the communication schedule registered by the administrator, so that it can accurately simulate resource allocation when the communication schedule is known.

In addition, the wireless management system of this embodiment calculates the number of terminals 3 communicating with a base station 2 when a terminal 3 communicates with the base station 2 based on past communication records, so that the administrator can accurately simulate resource allocation using information held by the wireless management system without any effort.

In addition, the wireless management system of this embodiment calculates the number of terminals 3 communicating with the base station 2 when the terminal 3 is communicating with the base station 2, based on the number of terminals 3 that are connected to the base station 2 and have equipment connected to them that is in operation and may communicate through the terminal 3. Therefore, when the communication schedule (e.g., the operating hours of machines installed in a factory) is known, the wireless management system can accurately simulate resource allocation.

The wireless management system of this embodiment also estimates the received signal strength of terminal 3 using the location information of terminal 3 and the signal strength distribution within the communication area, derives the maximum throughput of terminal 3 obtained from the estimated received signal strength, obtains the wireless resource allocation rate for terminal 3, and multiplies the calculated maximum throughput by the obtained wireless resource allocation rate to calculate the estimated throughput of terminal 3. Therefore, it is possible to accurately simulate actual resource allocation with limited information such as the location and number of terminals 3.

In addition, when the estimated throughput based on the wireless resources allocated to terminal 3 exceeds the required throughput, the wireless management system of this embodiment subtracts the surplus wireless resources and allocates the wireless resources to other terminals 3, thereby enabling accurate simulation of actual resource allocation.

In addition, the wireless management system of this embodiment generates data to display the status of wireless resources at base station 2 based on the calculated wireless resource usage rate, making it possible to present the available wireless resources at a specific point in time.

The wireless management system of this embodiment also generates data for displaying the possible installation range of terminal 3 that can provide the throughput required by terminal 3 based on the calculated wireless resource usage rate, so that possible installation locations can be presented to the administrator based on the input of the purpose of terminal 3.

The wireless management system of this embodiment also generates data for displaying the estimated throughput when terminal 3 is placed at a specified location based on the calculated wireless resource usage rate, so that the maximum throughput that can be obtained can be presented by inputting the installation location of terminal 3.

The present invention is not limited to the above-described embodiments, but includes various modified examples and equivalent configurations within the spirit of the appended claims. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to having all of the configurations described. Furthermore, part of the configuration of one embodiment may be replaced with the configuration of another embodiment. Furthermore, the configuration of another embodiment may be added to the configuration of one embodiment. Furthermore, part of the configuration of each embodiment may be added, deleted, or replaced with other configurations.

Furthermore, each of the configurations, functions, processing units, processing means, etc. described above may be realized in part or in whole in hardware, for example by designing them as integrated circuits, or may be realized in software by a processor interpreting and executing a program that realizes each function.

Information such as programs, tables, and files that realize each function can be stored in a storage device such as a memory, hard disk, or SSD (Solid State Drive), or in a recording medium such as an IC card, SD card, or DVD.

In addition, the control lines and information lines shown are those considered necessary for explanation, and do not necessarily represent all control lines and information lines necessary for implementation. In reality, it is safe to assume that almost all components are interconnected.

Reference Signs List 1 Server 2 Base station 3 Terminal 4 Manager terminal 11 Terminal information collection unit 12 Manager terminal communication unit 13 Terminal information database 14 Communication environment database 15 Radio resource calculation unit 16 Network control unit 21 Wireless communication unit 22 Communication control unit 23 Server communication unit 31 Wireless communication unit 32 Communication environment measurement unit 33 Communication control unit

Claims (9)

A wireless management system for managing a wireless system including a base station and a terminal,
The computer includes an arithmetic unit that executes a predetermined arithmetic process and a storage device that is connected to the arithmetic unit,
The arithmetic device calculates the number of terminals communicating with the base station at the time of communication between the terminal and the base station, based on the number of devices that are connected to the terminal and that are in operation at a future time and that may communicate through the terminal, among the terminals connected to the base station;
The wireless management system is characterized in that the calculation device calculates a usage rate of wireless resources used by the terminal based on the location information of the terminal and the calculated number of terminals. 2. The wireless management system according to claim 1,
A wireless management system characterized in that the calculation device calculates the number of terminals communicating with the base station when the terminal communicates with the base station based on a communication schedule registered by an administrator. 2. The wireless management system according to claim 1,
The wireless management system is characterized in that the calculation device calculates the number of terminals communicating with the base station at the time of communication between the terminal and the base station based on past communication records. 2. The wireless management system according to claim 1,
The computing device estimates a received signal strength of the terminal using location information of the terminal and a signal strength distribution within the communication area;
The computing device derives a maximum throughput of the terminal obtained using the estimated received signal strength;
The computing device acquires a wireless resource allocation rate for the terminal;
The wireless management system is characterized in that the calculation device multiplies the derived maximum throughput by the acquired wireless resource allocation rate to calculate an estimated throughput of the terminal. 5. The wireless management system according to claim 4,
When an estimated throughput calculated from the radio resources allocated to the terminal exceeds a required throughput, the calculation device allocates the radio resources by subtracting surplus radio resources;
The wireless management system is characterized in that the computing device allocates the surplus wireless resources to another terminal. 6. A wireless management system according to claim 1,
The wireless management system according to claim 1, wherein the calculation device generates data for displaying a status of the wireless resources in the base station based on the calculated usage rate of the wireless resources. 6. A wireless management system according to claim 1,
The wireless management system is characterized in that the calculation device generates data for displaying a range in which the terminal can be installed while providing the throughput required by the terminal, based on the calculated wireless resource usage rate. 6. A wireless management system according to claim 1,
The wireless management system is characterized in that the computing device generates data for displaying an estimated throughput when a terminal is placed at a specified position based on the calculated wireless resource usage rate. A radio management method executed by a radio management system that manages a radio system including a base station and a terminal, comprising:
the wireless management system is configured by a computer having an arithmetic unit that executes a predetermined arithmetic process and a storage device connected to the arithmetic unit,
The radio management method includes:
The arithmetic device calculates the number of terminals communicating with the base station at the time of communication between the terminal and the base station, based on the number of devices connected to the terminal that are in operation at a future time and that may communicate through the terminal, among the terminals connected to the base station;
A radio management method, characterized in that the calculation device calculates a usage rate of radio resources used by the terminal based on the location information of the terminal and the calculated number of terminals .

Images